RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4565 locations in the last 30 days (4732 reports) · Last sighting 14 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/13/20262620 W POTOMAC AVEWest Town26Completed1 dayMobile DeviceCity 311
9/25/20253000 W PRATT BLVDWest Ridge50Completed1 dayInternetCity 311
12/29/20254711 N ARTESIAN AVELincoln Square40Completed1 dayMobile DeviceCity 311
5/10/20267935 S HERMITAGE AVEAuburn Gresham17Completed1 dayPhone CallCity 311
4/6/20265640 W LAWRENCE AVEPortage Park45Completed1 dayMobile DeviceCity 311
2/23/20265640 W CARMEN AVEJefferson Park45Completed1 dayMobile DeviceCity 311
4/2/20263355 W LAKE STEast Garfield Park28Completed1 dayInternetCity 311
4/16/20264014 N KIMBALL AVEIrving Park33Completed1 dayMobile DeviceCity 311
9/10/2026127 S STATE STLoop34Completed1 dayMobile DeviceCity 311
5/7/20264832 N KEELER AVEAlbany Park39Completed1 dayPhone CallCity 311
5/4/20263658 N NORDICA AVEDunning38Completed1 dayInternetCity 311
2/3/20264572 N MULLIGAN AVEPortage Park38Completed1 dayInternetCity 311
3/5/20261116 N WOOD STWest Town1Completed1 dayInternetCity 311
1/8/20266142 S ELLIS AVEWoodlawn20Completed1 dayInternetCity 311
6/22/2026436 E NORTH WATER STNear North Side42Completed1 dayInternetCity 311
3/18/20263343 N PULASKI RDAvondale30Completed1 dayMobile DeviceCity 311
1/12/20264329 W POTOMAC AVEHumboldt Park37Completed1 dayMobile DeviceCity 311
8/13/20262311 W WASHINGTON BLVDNear West Side27Completed1 dayPhone CallCity 311
1/6/20265356 S FAIRFIELD AVEGage Park14Completed1 dayMobile DeviceCity 311
4/14/202610506 S VERNON AVERoseland9Completed1 dayPhone CallCity 311
3/24/20267357 N DAMEN AVERogers Park49Completed1 dayMobile DeviceCity 311
8/9/2026155 W CERMAK RDNear South Side3Completed1 dayInternetCity 311
5/6/20261702 W FARRAGUT AVEEdgewater40Completed1 dayMobile DeviceCity 311
2/26/20261430 W 114TH PLMorgan Park21Completed1 dayMobile DeviceCity 311
1/20/20262100 N PULASKI RDHermosa35Completed1 dayPhone CallCity 311
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